package com.zp.observer;/**
 * @description
 * @author zp
 * @created 2021/9/3 23:44
 */

/**
 * @author zp
 * @description
 * @created 2021/9/3 23:44
 */
public class YoungObserver extends Observer {
    public void update() {
        System.out.println("update young observer");
    }
}
